Hardy Zones 4-9 Mature Height: 2-3' Full Sun to Part Shade Attracts Butterflies Garden & Patio An exciting, improved variety of ‘Magnus’ developed by Jelitto Perennial Seeds of Germany. This breeding effort has resulted in more uniformly sized plants with large, more darkly colored flowers. The intense carmine-red petals are held horizontally from the center cone giving ‘Ruby Star’ a very beautiful and distinctive look. An exciting new cultivar!